Malicious PDF — malware analysis report

Static analysis result for SHA-256 6773797e08363a86…

MALICIOUS

PDF

42.8 KB Created: 2018-12-14 20:05:39 +03:00 Authoring application: FrameMaker 11.0.2 (via Acrobat Elements 10.0.0 (Windows))
MD5: 4a90767a89586a182c81dcf282178615 SHA-1: 085d91041b834ff0b14422cf1c3a5d97e11bd84b SHA-256: 6773797e08363a862d5266079e98adcc6542e6882511d0718f99a0868e628550
92 Risk Score

Malware Insights

MITRE ATT&CK
T1566.001 Spearphishing Attachment

The PDF contains a large number of embedded URLs pointing to external PDF files on the domain 'www.gorillawalker.com'. This pattern is indicative of a link farm, often used for SEO manipulation or to distribute a variety of content, potentially including malicious payloads. While no scripts were explicitly extracted, the heuristic 'PDF_SEO_LINK_FARM' strongly suggests this malicious intent. The ML classifier also flagged the document as malicious.

Machine Learning

  • Nyx PDF Classifier malicious score 0.8872

Heuristics 2

  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL http://www.gorillawalker.com/vertical-sound-records-a-description-of-recent-fundamental-advances-in.pdf
    • http://www.gorillawalker.com/daily-readings-with-margaret-silf.pdf
    • http://www.gorillawalker.com/fibromyalgia-biographies-of-disease.pdf
    • http://www.gorillawalker.com/fundamentals-of-construction-and-simulation-game-design.pdf
    • http://www.gorillawalker.com/works-for-organ-and-keyboard-dover-music-for-organ.pdf
    • http://www.gorillawalker.com/the-art-of-kung-fu-panda-2-hardcover.pdf
    • http://www.gorillawalker.com/startling-joy-seven-magical-stories-of-christmas.pdf
    • http://www.gorillawalker.com/bilingual-songs-english-french-vol-3-songs-that-teach-french.pdf
    • http://www.gorillawalker.com/snow-furries-an-alpine-grove-romantic-comedy-volume-4.pdf
    • http://www.gorillawalker.com/foreign-exchange-a-practical-guide-to-the-fx-markets-wiley.pdf
    • http://www.gorillawalker.com/european-union-selected-instruments-taken-from-the-treaties-bk1-v.pdf
    • http://www.gorillawalker.com/arabella-miller-s-tiny-caterpillar.pdf
    • http://www.gorillawalker.com/the-mountains-along-the-croatian-coast-on-foot-and-by.pdf
    • http://www.gorillawalker.com/delices-glacees-thermomix-french-edition-kindle-edition.pdf
    • http://www.gorillawalker.com/japonisme-cultural-crossings-between-japan-and-the-west.pdf
    • http://www.gorillawalker.com/dambuster.pdf
    • http://www.gorillawalker.com/la-indetenible-quietud-the-unstoppable-stillness-en-torno-a-eduardo.pdf
    • http://www.gorillawalker.com/medical-legal-aspects-of-medical-records-second-edition.pdf
    • http://www.gorillawalker.com/lighthouses-2010-hardcover-weekly-engagement.pdf
    • http://www.gorillawalker.com/the-carpenter-colonial-people.pdf
    • http://www.gorillawalker.com/hartford-election-cake-chiefly-from-manuscript-sources-cooking-in-america.pdf
    • http://www.gorillawalker.com/ethics-in-light-of-childhood.pdf
    • http://www.gorillawalker.com/between-the-assassinations.pdf
    • http://www.gorillawalker.com/frederick-douglass-for-the-great-family-of-man.pdf
    • http://www.gorillawalker.com/how-to-use-the-gopro-hero.pdf
    • http://www.gorillawalker.com/program-evaluation-a-step-by-step-guide.pdf
    • http://www.gorillawalker.com/one-jesus-many-christs-the-truth-about-christian-origins.pdf
    • http://www.gorillawalker.com/young-naturalist-s-pop-up-handbook-butterflies-hardcover.pdf
    • http://www.gorillawalker.com/math-placement-test-secrets-study-guide-mathematics-placement-test-practice.pdf
    • http://www.gorillawalker.com/boris-becker-s-tennis-the-making-of-a-champion.pdf
    • http://www.gorillawalker.com/mcgraw-hill-manual-of-laboratory-and-diagnostic-tests.pdf
    • http://www.gorillawalker.com/christmas-countdown-team-umizoomi-paint-box-book.pdf
    • http://www.gorillawalker.com/mistaken-first-impressions-are-never-what-they-seem.pdf
    • http://www.gorillawalker.com/chile-en-el-mundo-1880-1930-spanish-edition.pdf
    • http://www.gorillawalker.com/the-macintosh-software-guide-for-the-law-office.pdf
    • http://www.gorillawalker.com/young-restless-reformed-a-journalist-s-journey-with-the-new.pdf
    • http://www.gorillawalker.com/rising-sons-the-japanese-american-gis-who-fought-for-the.pdf
    • http://www.gorillawalker.com/sotheby-s-catalogue-of-watches-scientific-instruments-barometers-and-clocks.pdf
    • http://www.gorillawalker.com/the-literature-of-the-ancient-egyptians.pdf
    • http://www.gorillawalker.com/contractor-s-profit-manual.pdf
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#
    • http://purl.org/dc/elements/1.1/
    • http://ns.adobe.com/xap/1.0/
    • http://ns.adobe.com/pdf/1.3/
    • http://ns.adobe.com/xap/1.0/mm/
    • http://www.aiim.org/pdfa/ns/extension/
    • http://www.aiim.org/pdfa/ns/schema#
    • http://www.aiim.org/pdfa/ns/property#
    • http://www.aiim.org/pdfa/ns/id/

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